I just did some research, definitely watershield. I have a canoe I fish out of, but my younger brother and some of his friends fish from the bank on occasion. I'd like to be able to clear out a 20-30ft length of bank for them. I wonder if spreading some gravel would stop them. Only problem is a 30ft gravel bed is going to get costly. What if I pulled them out by the roots and put a 5ft wide rock "buffer" on either end? I know I can get more than enough rocks to do that.

Practice makes bad habits. Learning from practice makes perfect.